4. Communications: radio wave antennas
  5. Antennas
  6. Spiral or helical type

Yoshiyuki Chatani

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Antenna apparatus

Communications: radio wave antennas – Antennas – Spiral or helical type
Patent

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Antenna apparatus and antenna system

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent

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Array antenna for receiving radio communication

Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Patent

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Array antenna with radiation elements and amplifiers mounted on

Communications: radio wave antennas – Antennas – Microstrip
Patent

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Radio communications system

Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1594116

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